Definers’ research for Facebook on billionaire George Soros has never been published before. You can read one of those documents here. BuzzFeed News obtained a document Facebook commissioned as research on billionaire George Soros following critical comments the billionaire investor made at the World Economic Forum earlier this year. This report, which you can read below, is at the center of a controversy surrounding Facebook’s previous relationship with a public relations firm that brought Beltway political tactics to the social networking giant.